cd .. & cd ninechapters-common & mvnd clean compile install  & cd .. & cd ninechapters-accounts &  mvnd clean compile install  & cd .. & cd ninechapters-panels &  mvnd clean compile install  & cd .. & cd ninechapters-threeparties & mvnd clean compile install  & cd .. & cd ninechapters-tags & mvnd clean compile install  & cd .. & cd ninechapters-challenges & mvnd clean compile install  & cd .. & cd ninechapters-problems & mvnd clean compile install  & cd .. & cd ninechapters-api & mvnd clean compile install  & cd cmd